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Replace the Bowden tubes
The Bowden tubes guide the filament from the feeders to the print head.
Forwarding improperly cut or ground down filament through the Bowden tube could scratch or damage the inside of the
tube. If this happens, the filament can no longer be forwarded to the print head smoothly. This can lead to under extrusion
or other print quality issues.
After removing a Bowden tube multiple times, the tube coupling collet can wear out. If this happens, the tube coupling
collet will no longer have a firm hold on the Bowden tube. In this case, the Bowden tube will move up and down during
prints which can negatively impact print quality.
If the Bowden tubes are permanently damaged, they need to be replaced. To maintain optimal print quality it is
recommended to replace the Bowden tubes every year.
Disassembly
1. Remove the material by navigating to Material/PrintCore
g
Material [x]
g
Unload. After this, turn off the printer.
2. Place the print head in the front-right corner.
3. Use a fingernail to remove the clamp clips from the tube coupling collets at the print head and feeders.
4. Press down on the tube coupling collet in the print head and at the same time, pull the Bowden tube upwards, out of
the print head. Repeat these steps for the feeder.
5. When removing the Bowden tube from Extruder 2 (right), loosen the four cable clips from the Bowden tube to remove
it completely.
